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path: root/drivers/media/pci/bt8xx/bttv-risc.c
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Diffstat (limited to 'drivers/media/pci/bt8xx/bttv-risc.c')
-rw-r--r--drivers/media/pci/bt8xx/bttv-risc.c284
1 files changed, 149 insertions, 135 deletions
diff --git a/drivers/media/pci/bt8xx/bttv-risc.c b/drivers/media/pci/bt8xx/bttv-risc.c
index 3e0dac56de54..436baf6c8b08 100644
--- a/drivers/media/pci/bt8xx/bttv-risc.c
+++ b/drivers/media/pci/bt8xx/bttv-risc.c
@@ -67,8 +67,10 @@ bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
/* scan lines */
sg = sglist;
for (line = 0; line < store_lines; line++) {
- if ((btv->opt_vcr_hack) &&
- (line >= (store_lines - VCR_HACK_LINES)))
+ if ((line >= (store_lines - VCR_HACK_LINES)) &&
+ (btv->opt_vcr_hack ||
+ (V4L2_FIELD_HAS_BOTH(btv->field) ||
+ btv->field == V4L2_FIELD_ALTERNATE)))
continue;
while (offset && offset >= sg_dma_len(sg)) {
offset -= sg_dma_len(sg);
@@ -363,13 +365,6 @@ bttv_apply_geo(struct bttv *btv, struct bttv_geometry *geo, int odd)
static void bttv_set_risc_status(struct bttv *btv)
{
unsigned long cmd = BT848_RISC_JUMP;
- /*
- * The value of btv->loop_irq sets or resets the RISC_STATUS for video
- * and/or vbi by setting the value of bits [23:16] in the first dword
- * of the JUMP instruction:
- * video risc: set (1) and reset (~1)
- * vbi risc: set(4) and reset (~4)
- */
if (btv->loop_irq) {
cmd |= BT848_RISC_IRQ;
cmd |= (btv->loop_irq & 0x0f) << 16;
@@ -410,7 +405,8 @@ static void bttv_start_dma(struct bttv *btv)
if (btv->dma_on)
return;
btwrite(btv->main.dma, BT848_RISC_STRT_ADD);
- btor(0x3, BT848_GPIO_DMA_CTL);
+ btor(BT848_GPIO_DMA_CTL_RISC_ENABLE | BT848_GPIO_DMA_CTL_FIFO_ENABLE,
+ BT848_GPIO_DMA_CTL);
btv->dma_on = 1;
}
@@ -418,7 +414,8 @@ static void bttv_stop_dma(struct bttv *btv)
{
if (!btv->dma_on)
return;
- btand(~0x3, BT848_GPIO_DMA_CTL);
+ btand(~(BT848_GPIO_DMA_CTL_RISC_ENABLE |
+ BT848_GPIO_DMA_CTL_FIFO_ENABLE), BT848_GPIO_DMA_CTL);
btv->dma_on = 0;
}
@@ -509,17 +506,50 @@ bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
return 0;
}
-void
-bttv_dma_free(struct videobuf_queue *q,struct bttv *btv, struct bttv_buffer *buf)
+int bttv_buffer_risc_vbi(struct bttv *btv, struct bttv_buffer *buf)
{
- struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
-
- videobuf_waiton(q, &buf->vb, 0, 0);
- videobuf_dma_unmap(q->dev, dma);
- videobuf_dma_free(dma);
- btcx_riscmem_free(btv->c.pci,&buf->bottom);
- btcx_riscmem_free(btv->c.pci,&buf->top);
- buf->vb.state = VIDEOBUF_NEEDS_INIT;
+ int r = 0;
+ unsigned int offset;
+ unsigned int bpl = 2044; /* max. vbipack */
+ unsigned int padding = VBI_BPL - bpl;
+ unsigned int skip_lines0 = 0;
+ unsigned int skip_lines1 = 0;
+ unsigned int min_vdelay = MIN_VDELAY;
+
+ const struct bttv_tvnorm *tvnorm = btv->vbi_fmt.tvnorm;
+ struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vbuf.vb2_buf, 0);
+ struct scatterlist *list = sgt->sgl;
+
+ if (btv->vbi_fmt.fmt.count[0] > 0)
+ skip_lines0 = max(0, (btv->vbi_fmt.fmt.start[0] -
+ tvnorm->vbistart[0]));
+ if (btv->vbi_fmt.fmt.count[1] > 0)
+ skip_lines1 = max(0, (btv->vbi_fmt.fmt.start[1] -
+ tvnorm->vbistart[1]));
+
+ if (btv->vbi_fmt.fmt.count[0] > 0) {
+ r = bttv_risc_packed(btv, &buf->top, list, 0, bpl, padding,
+ skip_lines0, btv->vbi_fmt.fmt.count[0]);
+ if (r)
+ return r;
+ }
+
+ if (btv->vbi_fmt.fmt.count[1] > 0) {
+ offset = btv->vbi_fmt.fmt.count[0] * VBI_BPL;
+ r = bttv_risc_packed(btv, &buf->bottom, list, offset, bpl,
+ padding, skip_lines1,
+ btv->vbi_fmt.fmt.count[1]);
+ if (r)
+ return r;
+ }
+
+ if (btv->vbi_fmt.end >= tvnorm->cropcap.bounds.top)
+ min_vdelay += btv->vbi_fmt.end - tvnorm->cropcap.bounds.top;
+
+ /* For bttv_buffer_activate_vbi(). */
+ buf->geo.vdelay = min_vdelay;
+
+ return r;
}
int
@@ -539,8 +569,7 @@ bttv_buffer_activate_vbi(struct bttv *btv,
if (vbi) {
unsigned int crop, vdelay;
- vbi->vb.state = VIDEOBUF_ACTIVE;
- list_del(&vbi->vb.queue);
+ list_del(&vbi->list);
/* VDELAY is start of video, end of VBI capturing. */
crop = btread(BT848_E_CROP);
@@ -581,16 +610,13 @@ bttv_buffer_activate_video(struct bttv *btv,
/* video capture */
if (NULL != set->top && NULL != set->bottom) {
if (set->top == set->bottom) {
- set->top->vb.state = VIDEOBUF_ACTIVE;
- if (set->top->vb.queue.next)
- list_del(&set->top->vb.queue);
+ if (set->top->list.next)
+ list_del(&set->top->list);
} else {
- set->top->vb.state = VIDEOBUF_ACTIVE;
- set->bottom->vb.state = VIDEOBUF_ACTIVE;
- if (set->top->vb.queue.next)
- list_del(&set->top->vb.queue);
- if (set->bottom->vb.queue.next)
- list_del(&set->bottom->vb.queue);
+ if (set->top->list.next)
+ list_del(&set->top->list);
+ if (set->bottom->list.next)
+ list_del(&set->bottom->list);
}
bttv_apply_geo(btv, &set->top->geo, 1);
bttv_apply_geo(btv, &set->bottom->geo,0);
@@ -603,9 +629,8 @@ bttv_buffer_activate_video(struct bttv *btv,
btaor((set->top->btswap & 0x0a) | (set->bottom->btswap & 0x05),
~0x0f, BT848_COLOR_CTL);
} else if (NULL != set->top) {
- set->top->vb.state = VIDEOBUF_ACTIVE;
- if (set->top->vb.queue.next)
- list_del(&set->top->vb.queue);
+ if (set->top->list.next)
+ list_del(&set->top->list);
bttv_apply_geo(btv, &set->top->geo,1);
bttv_apply_geo(btv, &set->top->geo,0);
bttv_risc_hook(btv, RISC_SLOT_O_FIELD, &set->top->top,
@@ -614,9 +639,8 @@ bttv_buffer_activate_video(struct bttv *btv,
btaor(set->top->btformat & 0xff, ~0xff, BT848_COLOR_FMT);
btaor(set->top->btswap & 0x0f, ~0x0f, BT848_COLOR_CTL);
} else if (NULL != set->bottom) {
- set->bottom->vb.state = VIDEOBUF_ACTIVE;
- if (set->bottom->vb.queue.next)
- list_del(&set->bottom->vb.queue);
+ if (set->bottom->list.next)
+ list_del(&set->bottom->list);
bttv_apply_geo(btv, &set->bottom->geo,1);
bttv_apply_geo(btv, &set->bottom->geo,0);
bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
@@ -637,58 +661,54 @@ bttv_buffer_activate_video(struct bttv *btv,
int
bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf)
{
+ int r = 0;
const struct bttv_tvnorm *tvnorm = bttv_tvnorms + btv->tvnorm;
- struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
-
- dprintk("%d: buffer field: %s format: 0x%08x size: %dx%d\n",
- btv->c.nr, v4l2_field_names[buf->vb.field],
- btv->fmt->fourcc, buf->vb.width, buf->vb.height);
+ struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vbuf.vb2_buf, 0);
+ struct scatterlist *list = sgt->sgl;
+ unsigned long size = (btv->fmt->depth * btv->width * btv->height) >> 3;
/* packed pixel modes */
if (btv->fmt->flags & FORMAT_FLAGS_PACKED) {
- int bpl = (btv->fmt->depth >> 3) * buf->vb.width;
- int bpf = bpl * (buf->vb.height >> 1);
-
- bttv_calc_geo(btv,&buf->geo,buf->vb.width,buf->vb.height,
- V4L2_FIELD_HAS_BOTH(buf->vb.field),
- tvnorm, &btv->crop[!!btv->do_crop].rect);
+ int bpl = (btv->fmt->depth >> 3) * btv->width;
+ int bpf = bpl * (btv->height >> 1);
- switch (buf->vb.field) {
+ bttv_calc_geo(btv, &buf->geo, btv->width, btv->height,
+ V4L2_FIELD_HAS_BOTH(buf->vbuf.field), tvnorm,
+ &btv->crop[!!btv->do_crop].rect);
+ switch (buf->vbuf.field) {
case V4L2_FIELD_TOP:
- bttv_risc_packed(btv,&buf->top,dma->sglist,
- /* offset */ 0,bpl,
- /* padding */ 0,/* skip_lines */ 0,
- buf->vb.height);
+ r = bttv_risc_packed(btv, &buf->top, list, 0, bpl, 0,
+ 0, btv->height);
break;
case V4L2_FIELD_BOTTOM:
- bttv_risc_packed(btv,&buf->bottom,dma->sglist,
- 0,bpl,0,0,buf->vb.height);
+ r = bttv_risc_packed(btv, &buf->bottom, list, 0, bpl,
+ 0, 0, btv->height);
break;
case V4L2_FIELD_INTERLACED:
- bttv_risc_packed(btv,&buf->top,dma->sglist,
- 0,bpl,bpl,0,buf->vb.height >> 1);
- bttv_risc_packed(btv,&buf->bottom,dma->sglist,
- bpl,bpl,bpl,0,buf->vb.height >> 1);
+ r = bttv_risc_packed(btv, &buf->top, list, 0, bpl,
+ bpl, 0, btv->height >> 1);
+ r = bttv_risc_packed(btv, &buf->bottom, list, bpl,
+ bpl, bpl, 0, btv->height >> 1);
break;
case V4L2_FIELD_SEQ_TB:
- bttv_risc_packed(btv,&buf->top,dma->sglist,
- 0,bpl,0,0,buf->vb.height >> 1);
- bttv_risc_packed(btv,&buf->bottom,dma->sglist,
- bpf,bpl,0,0,buf->vb.height >> 1);
+ r = bttv_risc_packed(btv, &buf->top, list, 0, bpl, 0,
+ 0, btv->height >> 1);
+ r = bttv_risc_packed(btv, &buf->bottom, list, bpf,
+ bpl, 0, 0, btv->height >> 1);
break;
default:
WARN_ON(1);
+ return -EINVAL;
}
}
-
/* planar modes */
if (btv->fmt->flags & FORMAT_FLAGS_PLANAR) {
int uoffset, voffset;
int ypadding, cpadding, lines;
/* calculate chroma offsets */
- uoffset = buf->vb.width * buf->vb.height;
- voffset = buf->vb.width * buf->vb.height;
+ uoffset = btv->width * btv->height;
+ voffset = btv->width * btv->height;
if (btv->fmt->flags & FORMAT_FLAGS_CrCb) {
/* Y-Cr-Cb plane order */
uoffset >>= btv->fmt->hshift;
@@ -700,93 +720,87 @@ bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf)
voffset >>= btv->fmt->vshift;
voffset += uoffset;
}
-
- switch (buf->vb.field) {
+ switch (buf->vbuf.field) {
case V4L2_FIELD_TOP:
- bttv_calc_geo(btv,&buf->geo,buf->vb.width,
- buf->vb.height,/* both_fields */ 0,
- tvnorm, &btv->crop[!!btv->do_crop].rect);
- bttv_risc_planar(btv, &buf->top, dma->sglist,
- 0,buf->vb.width,0,buf->vb.height,
- uoffset, voffset, btv->fmt->hshift,
- btv->fmt->vshift, 0);
+ bttv_calc_geo(btv, &buf->geo, btv->width, btv->height,
+ 0, tvnorm,
+ &btv->crop[!!btv->do_crop].rect);
+ r = bttv_risc_planar(btv, &buf->top, list, 0,
+ btv->width, 0, btv->height,
+ uoffset, voffset,
+ btv->fmt->hshift,
+ btv->fmt->vshift, 0);
break;
case V4L2_FIELD_BOTTOM:
- bttv_calc_geo(btv,&buf->geo,buf->vb.width,
- buf->vb.height,0,
- tvnorm, &btv->crop[!!btv->do_crop].rect);
- bttv_risc_planar(btv, &buf->bottom, dma->sglist,
- 0,buf->vb.width,0,buf->vb.height,
- uoffset, voffset, btv->fmt->hshift,
- btv->fmt->vshift, 0);
+ bttv_calc_geo(btv, &buf->geo, btv->width, btv->height,
+ 0, tvnorm,
+ &btv->crop[!!btv->do_crop].rect);
+ r = bttv_risc_planar(btv, &buf->bottom, list, 0,
+ btv->width, 0, btv->height,
+ uoffset, voffset,
+ btv->fmt->hshift,
+ btv->fmt->vshift, 0);
break;
case V4L2_FIELD_INTERLACED:
- bttv_calc_geo(btv,&buf->geo,buf->vb.width,
- buf->vb.height,1,
- tvnorm, &btv->crop[!!btv->do_crop].rect);
- lines = buf->vb.height >> 1;
- ypadding = buf->vb.width;
- cpadding = buf->vb.width >> btv->fmt->hshift;
- bttv_risc_planar(btv,&buf->top,
- dma->sglist,
- 0,buf->vb.width,ypadding,lines,
- uoffset,voffset,
- btv->fmt->hshift,
- btv->fmt->vshift,
- cpadding);
- bttv_risc_planar(btv,&buf->bottom,
- dma->sglist,
- ypadding,buf->vb.width,ypadding,lines,
- uoffset+cpadding,
- voffset+cpadding,
- btv->fmt->hshift,
- btv->fmt->vshift,
- cpadding);
+ bttv_calc_geo(btv, &buf->geo, btv->width, btv->height,
+ 1, tvnorm,
+ &btv->crop[!!btv->do_crop].rect);
+ lines = btv->height >> 1;
+ ypadding = btv->width;
+ cpadding = btv->width >> btv->fmt->hshift;
+ r = bttv_risc_planar(btv, &buf->top, list, 0,
+ btv->width, ypadding, lines,
+ uoffset, voffset,
+ btv->fmt->hshift,
+ btv->fmt->vshift, cpadding);
+
+ r = bttv_risc_planar(btv, &buf->bottom, list,
+ ypadding, btv->width, ypadding,
+ lines, uoffset + cpadding,
+ voffset + cpadding,
+ btv->fmt->hshift,
+ btv->fmt->vshift, cpadding);
break;
case V4L2_FIELD_SEQ_TB:
- bttv_calc_geo(btv,&buf->geo,buf->vb.width,
- buf->vb.height,1,
- tvnorm, &btv->crop[!!btv->do_crop].rect);
- lines = buf->vb.height >> 1;
- ypadding = buf->vb.width;
- cpadding = buf->vb.width >> btv->fmt->hshift;
- bttv_risc_planar(btv,&buf->top,
- dma->sglist,
- 0,buf->vb.width,0,lines,
- uoffset >> 1,
- voffset >> 1,
- btv->fmt->hshift,
- btv->fmt->vshift,
- 0);
- bttv_risc_planar(btv,&buf->bottom,
- dma->sglist,
- lines * ypadding,buf->vb.width,0,lines,
- lines * ypadding + (uoffset >> 1),
- lines * ypadding + (voffset >> 1),
- btv->fmt->hshift,
- btv->fmt->vshift,
- 0);
+ bttv_calc_geo(btv, &buf->geo, btv->width, btv->height,
+ 1, tvnorm,
+ &btv->crop[!!btv->do_crop].rect);
+ lines = btv->height >> 1;
+ ypadding = btv->width;
+ cpadding = btv->width >> btv->fmt->hshift;
+ r = bttv_risc_planar(btv, &buf->top, list, 0,
+ btv->width, 0, lines,
+ uoffset >> 1, voffset >> 1,
+ btv->fmt->hshift,
+ btv->fmt->vshift, 0);
+ r = bttv_risc_planar(btv, &buf->bottom, list,
+ lines * ypadding,
+ btv->width, 0, lines,
+ lines * ypadding + (uoffset >> 1),
+ lines * ypadding + (voffset >> 1),
+ btv->fmt->hshift,
+ btv->fmt->vshift, 0);
break;
default:
WARN_ON(1);
+ return -EINVAL;
}
}
-
/* raw data */
if (btv->fmt->flags & FORMAT_FLAGS_RAW) {
/* build risc code */
- buf->vb.field = V4L2_FIELD_SEQ_TB;
- bttv_calc_geo(btv,&buf->geo,tvnorm->swidth,tvnorm->sheight,
+ buf->vbuf.field = V4L2_FIELD_SEQ_TB;
+ bttv_calc_geo(btv, &buf->geo, tvnorm->swidth, tvnorm->sheight,
1, tvnorm, &btv->crop[!!btv->do_crop].rect);
- bttv_risc_packed(btv, &buf->top, dma->sglist,
- /* offset */ 0, RAW_BPL, /* padding */ 0,
- /* skip_lines */ 0, RAW_LINES);
- bttv_risc_packed(btv, &buf->bottom, dma->sglist,
- buf->vb.size/2 , RAW_BPL, 0, 0, RAW_LINES);
+ r = bttv_risc_packed(btv, &buf->top, list, 0, RAW_BPL, 0, 0,
+ RAW_LINES);
+ r = bttv_risc_packed(btv, &buf->bottom, list, size / 2,
+ RAW_BPL, 0, 0, RAW_LINES);
}
/* copy format info */
buf->btformat = btv->fmt->btformat;
buf->btswap = btv->fmt->btswap;
- return 0;
+
+ return r;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-27 11:12:07 +0300